This deck is a basic combination of Kaiju and Dinosaur monsters that work very well on their own, as well as together thanks to the spell card Double Evolution Pill, which allows you to special summon Dinosaur boss monsters by banishing one Dinosaur and one Non-Dinosaur monster. This deck is focused a bit more on the Kaiju side
If Kyoutou Waterfront is on the field, you have the whole Archetype at your disposal, but your opponent has access to their power as well. Focus on giving your opponent Super Anti-Kaiju War Machine Mecha-Dogoran or Radian, the Multidimensional Kaiju, which will have the lowest ATK and no quick effect, so they can't use it against you as long as you get rid of it this tun.
Dogoran, the Mad Flame Kaiju and Ultimate Conductor Tyranno are your primary Boss Monsters. Without Kyoutou Waterfront, Dogoran is just a beat stick, but with Kaiju Counters at its disposal, it's capable of nuking your opponent's monsters, even though it can't attack for the rest of the turn.
You may notice that your extra deck is full of smaller, effect focused monsters. These are mostly used as materials. They can send dinosaurs to the GY to set up for Ultimate Conductor Tyranno, and when they leave the field, you have a new non-dinosaur monster to use for Double Evolution Pill.
Knightmare Phoenix in particular also helps with this deck's inability to destroy Spells and Traps plaguing the field.
Reprodocus can also be useful, allowing Kaiju monsters like Thunder King, the Lightningstrike Kaiju to reap the benefits of Lost World and Miscellaneousaurus
Need a refill on cards? Put Ultimate Conductor Tyranno in a slot that Trackblack points to and wreak havok. Just make sure to use Tyrrano's effect on monsters with "if this card is destroyed" effects... or with 3500+ DEF, but I don't have to tell you that one
There is a pretty good one turn combo with just two Dinosaur cards that provide you with both Double Evolution Pill and a free search for any Dinosaur Monster you want from your deck to your hand. The primary aim to set off the combo is using Animadorned Archosaur to destroy Babycerasaurus. You can also use Petiteranodon, but I prefer Babycerasaurus because it can summon itself or Petiteranodon from the deck, which can extend the combo.
THE COMBO:
(You can follow the first step if you have Souleating Oviraptor + either Miscellaneousaurus or Babycerasaurus. Follow step 2 if you have Miscellaneousaurus + Babycerasaurus. Follow step 3 if you have Animadorned Archosaur + Babycerasaurus)
• Normal Summon Souleating Oviraptor to search for either Miscellaneousaurus or Babycerasaurus, whichever is NOT in your hand yet.
• Activate Miscellaneousaurus's effect to send itself to the GY, then banish Miscellaneousaurus to summon Animadorned Archosaur. This is the best step to start on since it saves your Normal Summon
•Summon Animadorned Archosaur and destroy Babycerasaurus to add Double Evolution Pill.
•Activate the effect of Babycerasaurus to summon Souleating Oviraptor if you have not yet, otherwise summon another monster
○If you also have Interrupted Kaiju Slumber, you can instead use Babycerasaurus to summon itself or Petiteranodon. Use Interrupted to nuke the field. Then, after you summon Kaiju monsters, use the second Babycerasaurus or Petiteranodon to summon another Dinosaur of your coice
• If you did not follow Step 1, use Souleating Oviraptor to search for Ultimate Conductor Tyranno or any other Dinosaur. I prefer Petiteranodon, so I can activate Ultimate Conductor's effect, destroy Petite, and summon another monster.
○If you still have Souleating Oviraptor and a Normal Summon, search for and summon either Babycerasaurus or Petiteranodon, then use Souleating Oviraptor's effect to destroy it and summon a different monster from the GY plus one from your deck
• If you don't have the requirements to summon Ultimate Conductor Tyranno yet, tribute summon or link summon to send your field Dinosaurs to the GY.
The extra deck is mostly full of options to keep you in the game. Super Conductor Tyranno can be used as a strong monster, but it also fast passes your monsters to the GY. Use Petiteranodon to summon it easily!
The Pot and Jar cards can help keep your GY and banished zone empty, draw cards, and keep your Deck full. I highly recommend Jar of Avarice to restock on Spells and Traps that would have no use in the GY otherwise, Pot of Extravagance since that Extra Deck is mostly fodder anyway, and Pot of Acquisitiveness to help retrieve banished monsters. Keep in mind though that you can also return 5 banished Dinosaur monsters to the deck in order to summon Overtex Qoatlus, so if you have it in hand without Double Evolution Pill, prioritize returning Kaiju monsters.
The Kaiju Files are in the side deck because I personally don't use them much, but they are very useful, especially in a Kaiju focused play style
Because this deck is prone to brick hands, cards like Negate Attack and Waboku are good ways to buy yourself a turn or two.
With Lost World is on the field all Kaiju monsters are weakened, except for Dogoran, the Mad Flame Kaiju, so you can give your opponent anything else. Lost World also has the bonus of adding Jurraegg Tokens. These not only count as Normal monsters for Lost World's own effect, but it also gives you something to tribute for Kaijus. You can use this to focus a bit more on the Dinosaur side of the deck